Extrusion



FIG. 1 is an isometric view of an extrusion showing my new design;

FIG. 2 is an enlarged perspective view thereof, showing a detail of the grooves;

FIG. 3 is an end view thereof;

FIG. 4 is an enlarged elevation view thereof, showing a detail of the grooves;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a rear elevation view thereof.

The extrusion is shown with a symbolic break in its length. The appearance of any portion of the extrusion between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for an extrusion, as shown and described. 